HTTP Status Explorer
Look up the meaning and use of HTTP response codes.
How to reason about HTTP
HTTP Status Explorer helps make HTTP messages predictable. Method, status, headers, and body form a contract: changing one part can affect caching, security, or client behavior.
- Use methods according to intent: GET reads, POST creates or processes, PUT replaces, PATCH partially changes, and DELETE removes.
- Read status, headers, and body together; a 2xx status does not guarantee a business-valid payload.
- For cross-origin scenarios, account for preflight, credentials, and the browser origin.
Practical tip: Never paste real tokens, cookies, or keys into test tools.